package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws Exception {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        Statement  statement = conn.createStatement();
        String sql ="UPDATE userinfo "+
                "SET password='666666 '"+
                "WHERE username = '张三'";
        int num = statement.executeUpdate(sql);
        if(num>0){
            System.out.println("修改成功");
        }else {
            System.out.println("修改失败");
        }
        conn.close();
    }
}